EIP-2026-104166

PRE-CVE

Apple Safari 10.0.3(12602.4.8) / WebKit - 'HTMLObjectElement::updateWidget' Universal Cross-Site Scripting

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-104166. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a Same Origin Policy (SOP) bypass in Safari by manipulating the base URL during the beforeload event, allowing navigation to a JavaScript URL. The vulnerability arises from inconsistent URL resolution in HTMLObjectElement::updateWidget and HTMLPlugInImageElement::allowedToLoadFrameURL.

Description

Apple Safari 10.0.3(12602.4.8) / WebKit - 'HTMLObjectElement::updateWidget' Universal Cross-Site Scripting

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmlwebappsmultiple
https://www.exploit-db.com/exploits/42069

This PoC exploits a Same Origin Policy (SOP) bypass in Safari by manipulating the base URL during the beforeload event, allowing navigation to a JavaScript URL. The vulnerability arises from inconsistent URL resolution in HTMLObjectElement::updateWidget and HTMLPlugInImageElement::allowedToLoadFrameURL.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Moderate
Reliability
Reliable
Target: Safari 10.0.3 (12602.4.8)
No auth needed
Prerequisites: Victim must visit a malicious webpage
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026